He added: "While the couple involved made a silly mistake, they did not do anything malicious or unlawful and have therefore not been disciplined. Regrettably they have chosen to resign.
"We are however dealing seriously with the issue of the email going outwith our organisation and reinforcing our policies in relation to this."
If this is a true account of how the company handled it than kudos to them. I hope it is possible to determine who thought what was obviously a personal email sent in error was so gosh darn funny that it merited being sent around as a joke to others. That's the person I'd want fired because that's where the really poor judgement (not to mention malicious attitude) comes in.